Add proper representations for axial, doubled and offset (hex) coordinates

[fwcd]

See here:

socha-client-rust-2024/src/game/cube_vec.rs

Lines 7 to 11 in 0dc1078

	// TODO: Add better representation of different Hex coordinate systems and (orthogonally) local/global coordinates
	// We have a few options for that:
	// - Generic Vec2/Vec3 types, parameterized over marker types (Offset, Axial, Doubled, Cube, ... and Local, Global)
	// - Newtype wrappers around Vec2/Vec3 types
	// - For those, we might consider using https://github.com/JelteF/derive_more to derive the operator traits